The Growth of the Cambrian Combine

Date of Amalgamation	Colliery	Company	Output in 1916
1895	Cambrian Nos. 1,2 & 3	Cambrian Colls. Ltd	986,000
1907	Llwynypia Nos. 1,2 & 6 Sherwood Level	Glamorgan Coal Co. Ltd	905,000
1908	Formation of the Cambrian Trust Ltd
1908	Anthony Pandy Ely Nantgwyn Adare Level	Naval Coll. Co. Ltd	595,000
1910	With J.W. Beynon & L Llewellyn controlling interest in Fernhill Nos. 1,2,3, & 4	Fernhill Colls. Co. Ltd	500,000
1913 [May]	Formation of Consolidated Cambrian Ltd [Share Capital Ł2m; subscribed capital Ł1,791,211]
1916	Controlling interest in David Davies & Sons Ltd, Ferndale Nos.1,2,3,4,5,6,7,8 & 9		1,900,000
			4,886,000

In addition the Cambrian Combine secured a controlling interest in the following South Wales collieries outside the Rhondda Valleys.

1907	Albion Steam Co. Ltd
1910	Britannic Merthyr Coal Co. Ltd
1911	Cynon Colliery Co. Ltd
1911	Celtic Colls Ltd.
1916	North’s Navigation Coal Co. Ltd
1916	Imperial Navigation Co. Ltd
1916	International Coal Co. Ltd
1916	Welsh Navigation Steam Coal Co. Ltd
1916	Gwaun-cae-gurwen Colliery Co. Ltd

In 1916 the Cambrian Group of Rhondda Collieries controlled nearly 5 million tons out of the total output of the Rhondda coalfield of 7,597,106 tons [about 66%]. The output of the Cambrian Combine as a whole in South Wales amounted to no less than 7,355,00 tons.